CVE-2026-72732Discourse: Templates endpoint exposes hidden tag names
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No exploitation reported and no EPSS estimate yet.
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Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, the discourse_templates endpoint exposed hidden tag names because DiscourseTemplates::TemplatesSerializer in plugins/discourse-templates/app/serializers/discourse_templates/templates_serializer.rb did not filter tags through the request Guardian. The serializer did not respect tag group permissions, allowing users to see tags they were not permitted to view. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.
- CVSS
- 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Weakness (CWE)
- CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Deferred
- Record last updated
- Aug 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
discourse discourse discourse:discourse (from the name) | before 2026.1.6; from 2026.5.0-latest, < 2026.5.2; from 2026.6.0-latest, < 2026.6.1; from 2026.7.0-latest, < 2026.7.0 | CNA record |
References
- https://github.com/discourse/discourse/security/advisories/GHSA-xrgc-52m8-82hmx-refsource-confirm
- https://github.com/discourse/discourse/commit/25e9d55b4c652b8dc1c90f44c40c8f3fec77748cx-refsource-misc
- https://github.com/discourse/discourse/commit/c9b431b3b75727f7132ec231142371d203a6124bx-refsource-misc
- https://github.com/discourse/discourse/commit/f216f258bd473e6299c6aef7b6130e7db90116c0x-refsource-misc
- https://github.com/discourse/discourse/commit/f41e71b645eb60cc263e7a1de22251028115abf1x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.